Background::The three-dimensional (3D) visualization model has ability to quantify the surgical anatomy of far-lateral approach. This study was designed to disclose the relationship between surgical space and exposed tissues in the far-lateral approach by the volumetric analysis of 3D model.Methods::The 3D skull base models were constructed using MRI and CT data of 15 patients (30 sides) with trigeminal neuralgia. Surgical corridors of the far-lateral approach were simulated by triangular pyramids to represent two surgical spaces exposing bony and neurovascular tissues. Volumetric comparison of surgical anatomy was performed using pair t test. Results::The morphometric results were almost the same in the two surgical spaces except the vagus nerve (CN X) exposed only in one corridor, whereas the volumetric comparison represented the statistical significant differences of surgical space and bony and neurovascular tissues involved in the two corridors ( P<0.001). The differences of bony and neurovascular tissues failed to equal the difference of surgical space. Conclusions::For far-lateral approach, the increase of exposure for the bony and neurovascular tissues is not necessarily matched with the increase of surgical space. The volumetric comparative analysis is helpful to provide more detailed anatomical information in the surgical design.

Far-lateral approach;Three-dimensional visualization;Surgical anatomy;Quantification;Minimally invasive

Tang Ke;Feng Xu;Yuan Xiaodong;Li Yang;Chen Xinyue

Institute of Neurosurgery, The First Medical Center of Chinese PLA General Hospital, Fuxing Road 28, Beijing 100853, People's Republic of China.;Department of Basic Medicine, Xiamen Medical College, Guan kou zhong Road 1999, Xiamen, Fujian Province 361023, People's Republic of China.;Department of Radiology, The Eighth Medical Center of Chinese PLA General Hospital, Heishanhu Road 17, Beijing 100091, People's Republic of China.;Departmentof Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology, Zhong guan cun South Road 22, Beijing 100081, People's Republic of China.

中华神经外科杂志（英文）

[1]Tang Ke;Feng Xu;Yuan Xiaodong;Li Yang;Chen Xinyue-.Volumetric comparative analysis of anatomy through far-lateral approach: surgical space and exposed tissues)[J].中华神经外科杂志（英文）,2022(02):67-72

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